2 like 0 dislike
17.9k views

The 13-digit International Standard Book Number (ISBN) is a unique code that identifies a book commercially. The last digit is a check digit used for error detection. To calculate its value, each digit of the first twelve digits is alternately multiplied, from left to right, by 1 or 3. The products are summed up and divided by 10. The check digit is the remainder of the division subtracted from 10. If it is 10, it becomes 0. 

ISBN檢查號的計算方法: 前12個數字,奇數項 乘以 1 , 偶數項乘以 3

For example, assume that the first twelve digits are 978960931961.  

假設號碼前12位是978960931961

(a) (9*1 + 7*3 + 8*1 + 9*3 + 6*1 + 0*3 + 9*1 + 3*3 + 1*1 + 9*3 + 6*1 + 1*3) = 126 

(b) The check digit = 10 – (126 % 10) = 10 – 6 = 4  

檢查號 = 10 - 餘數 = 10 – (126 % 10) = 10 – 6 = 4  

So the valid ISBN is: 9789609319614

Write a program that reads a 13-digit ISBN and checks the last digit to see if it is valid or not. 

寫一個輸入13位ISBN號碼 判斷最後一個數字是否檢查碼即可

#Try 1:

Input:

9789609319614

Output: 

Valid ISBN

 

#Try 2:

Input:

9781482214505

Output: 

Valid ISBN

 

#Try 3:

Input:

9780132936493

Output: 

Invalid ISBN

 

[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited

edited by | 17.9k views

77 Answers

0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
***** *** * * * * * * ** ** ** * *** ** * * ** **** *** * ** *** ******* *
* * ******* ** *
** ** ** ** * *** ****** * *** ** ** * *** ** * ** ** * * *** ***** *** *** *** * ******* * * *************** ** * * * ****** * ** ** ** * * *** * **** ****** *** ** *
* ***** * * **** * *
** * ** ** ** * * = * * * ** ****** *** ** * * *** *** *** * ** * ** **** **
* ** **** * * * * *** **
*** ** * ** ** * = 10 - (a%10);
    
***** ******* * ** **** ( b == number13 )
****** * ***** * * * * ** ** * * ** ********* **** ISBN");
    
**** * * * * * *** * **
* ** * ** ** * ** * **** * * ** ** *** ** * *** * **** ** ISBN");
* ** ** * * ** ****
** ** * ** * ** *** *
** *** ** ** ***** ***** *** 0;
}
answered by (-233 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
* ** * ** * *** ****** *** ** * ** * * ** * ***
** * **** * ** * * * *** ******* * * ** * * ** *** * * * ** ** * * * **** ** ** ** * ** * ** * * ** *** * ** ** * * * ** *
*** ** ********** ******* * * ** * * * * * ** *
* ** ** *** ***** ** ** *
* ** * * * ** * *** * printf("Valid ISBN");
** * ** *** ** *** printf("Invalid ISBN");
* * * * * * **** * 0;
}
answered by (-32 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
** * ** a,b,c,d,e,f,g,h,i,j,k,l,m;
* ** * ** * ***** * * * ** * ****** * * * **** * * * *** * * * * * * * ** * * * * ** * ** ** **** ** * * ** * *** * ** * *
* *** ****** * * * *** * ** * * *** * * *
* * * * * *** *
* * * *** ** **** *** ***** * *** * ** ** *** ** * * ** * * ISBN");
**** ** * * *******
** ** ** * ** * * **
    {
* * * *** *** * * *** * ** ** ** * ** ** ** ** * * ** * * * ISBN");
* ** * * *** * * *
}
answered by (-254 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
void main()
{
    char isbn[12];
    int a=0,b=0,c,d,e,i,g,h;
** ***** * ** ** * * * * * ** ** ****** *
* *** * * * ** *** **** * * ** *
*** * *** * * * * ** ** * * * *** * * * ** *** ****** * * * ** *** * * * ** ** *
** * *** ****** *** * ***** ** *** * ** *
** ** ***** ** ** * ** * * ** * ** ****** *** *
** * ** **** *** * *** ******
*** * * * *** * * * * ** * * * **** * ** *
* *** * * * ** * ** **
* ***** * * * ***** * *** * ** * *** *
* ****** ** **** *** * ** **
* * ** * *** ** *** * * * * ** * * ** **
*** * ** * * *** * * **
** ***** ** ** * **** * * * **** * * ****** ** *
* ** ** * ** * * * ** * *
* **** * * *** * * * ** ****** ** ** * **** * ISBN");
    else
* **** ** *** * * *** * * *** * * * * *** ** *** ISBN");
}
answered by (-32 points)
edited by
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
** *** * ******** ***** a,b,c,d,e,f,g,h,i,j,k,l,m;
**** **** * ***** * * * * * *********** ** * * * ****** * *** * * * ** *** * * * ** ****** ***** * * ***** *** * ** *** ** * * *** *
***** ****** ** **** * * ** * * **** ******* *** ** *
* * **** **** * ** **
*** ** ****** **** ** ***** *** *** ** ** * * * **** ** * ISBN");
* * * *** ** *
** * ** * *** ** ***
    {
* * ** * ** * * * ** * *** ** ** * ** ***** * * ISBN");
* * * * ** **
}
answered by (-214 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int * * ** * ** * * * *

* * * ** ***** *** *** ** ** * * * * * ******** * * * * **** **** *** ** * **** * ******* ****** *** * * * ** *** **** * * ***** * * *** * * ** * **

* * *** * * ** ***** ** * *** ********* ** **** *

*** ***** ** **** * ** ***** ** * ** **

** *** *** * * ** * * ** ***
******* *** ****** ** *** * ** * * *** * ** ** ** *** * * ** ISBN");}
* * * *** * *** * * * *
* * * ** * * ** * * ** * ****** * ** * * * * * **** ***** * ISBN");}

** *** ** * *** ** *** * 0;
}
answered by (-16 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
* * * * * * ** ** * a,b,c,d,e,f,g,h,i,j,k,l;
* * ** * * * **** * m;
** * * * *** * * *** * n;
* * ** * * * ** * * ** * ** * * * *** * ** * ***** *** *** ** * * ******* *** **** * ** * ** * ***** * ***** * * **** *** * ** ** ***
* * * ** **** ** * * ** *** ******* * * *** **
**** * **** * * *** **
* * ** * * * * ** **
* **** * *** *** * **
* * * * * * * ** * * ** * *** * ** ** *** * * * ISBN");
    }
* ** * * * ** * *
    {
* ** ** ** * * ** * * * *** * * * ** * ** ISBN");
* * * ** * *** ** ***** * *
}
answered by (-329 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
* ****** * **** * **** a,b,c,d,e,f,g,h,i,j,k,l,m,n,o;
** ** * ** ** * * ** ** *** * ********** * ** * * ** * *** * * * ****** **** ** ** * * ** ***** ** * *** ** * ** ** ** * ** * * **
* *** * *** * * ** * ** * * ***
*** * ** * ** * ****** *
* * ** * ** ** ** * ** *** *
* * *** ** * * ** **** ** * ******* *** **** ** ISBN");
*** ** * * * ** * **** * *
* ** ******* * ** * * *** * * **** *** *** * * ** * * ISBN");
* * **** * **** * ** * * * * 0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
* *** **** ** **** ****** n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13, sum;

* * * * * * ** *** **** ** **** * *** * *** *** * * * **** * **** * * * **** *** ** ** * **** ** * **** * * ******** * ** * * * *** * **

* * **** * * **** **** * **** ** **** ** ** * * * *** ** ***** * * **

*** ****** ** * * * *** ** * **
** * ** * * * * * *** *** * **** ** *** * ****** * ** * ISBN");
***** ** * *** * *** * ***
* * ** * * ** * * *** * * ** *** * ** **** ******* * ISBN");
** * * * *** ** **** * * 0;
}
answered by (-168 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
    int * * * ** ** * ** * * * * * *** * *
* *** * * * ********* * * * ****** *** * *** * ** * * * ** * * * * * * * *** ** * **** * * * * ******** * * ***** * * ** ** * * **

* *** ** * * * ** ** ****** * * ** * ** *** ** * * * * ****
** *** * * * * * ** * * *

* * * ** * * * * ******
* **** * * * *** ** * * * * * ISBN");}
* **** * * *** ** * * * * ****
*** *** * *** * ** * * * ISBN");}

* ** ** * ** * ** *** 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.197.94
©2016-2026

Related questions

0 like 0 dislike
26 answers
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 7.3k views
1 like 1 dislike
49 answers
[Exam] asked Nov 15, 2017 in Midterm by thopd (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 11.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users